RecyclerView remove divider / decorator after the last item

Question

I have a quite simple RecyclerView.
This is how I set the divider:

DividerItemDecoration itemDecorator = new DividerItemDecoration(getContext(), DividerI         


        

Answer 1

Extension function for Kotlin:

fun RecyclerView.addItemDecorationWithoutLastDivider() {

    if (layoutManager !is LinearLayoutManager)
        return

    addItemDecoration(object :
        DividerItemDecoration(context, (layoutManager as LinearLayoutManager).orientation) {

        override fun getItemOffsets( outRect: Rect, view: View, parent: RecyclerView, state: RecyclerView.State) {
            super.getItemOffsets(outRect, view, parent, state)

            if (parent.getChildAdapterPosition(view) == state.itemCount - 1)
                outRect.setEmpty()
            else
                super.getItemOffsets(outRect, view, parent, state)
        }
    })
}

You can use it easily:

recyclerView.addItemDecorationWithoutLastDivider()